CN104167339A - Circuit breaker device and power distribution unit - Google Patents
Circuit breaker device and power distribution unit Download PDFInfo
- Publication number
- CN104167339A CN104167339A CN201410209088.8A CN201410209088A CN104167339A CN 104167339 A CN104167339 A CN 104167339A CN 201410209088 A CN201410209088 A CN 201410209088A CN 104167339 A CN104167339 A CN 104167339A
- Authority
- CN
- China
- Prior art keywords
- equipment
- solenoid
- circuit breaker
- control lever
- trip condition
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000009826 distribution Methods 0.000 title claims abstract description 28
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 10
- 230000005294 ferromagnetic effect Effects 0.000 claims description 10
- 238000012544 monitoring process Methods 0.000 claims description 10
- 230000005389 magnetism Effects 0.000 claims description 9
- 238000012546 transfer Methods 0.000 claims description 4
- 230000006870 function Effects 0.000 description 13
- 230000001681 protective effect Effects 0.000 description 6
- 230000008859 change Effects 0.000 description 5
- 238000009434 installation Methods 0.000 description 5
- 238000005259 measurement Methods 0.000 description 4
- 230000002265 prevention Effects 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 230000010267 cellular communication Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 239000003302 ferromagnetic material Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000005291 magnetic effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000005055 memory storage Effects 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000002123 temporal effect Effects 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H83/00—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current
- H01H83/20—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by excess current as well as by some other abnormal electrical condition
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/08—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess current
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
- H01H71/66—Power reset mechanisms
- H01H2071/665—Power reset mechanisms the reset mechanism operating directly on the normal manual operator, e.g. electromagnet pushes manual release lever back into "ON" position
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
- H01H71/66—Power reset mechanisms
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
- H01H71/66—Power reset mechanisms
- H01H71/68—Power reset mechanisms actuated by electromagnet
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
- H01H71/66—Power reset mechanisms
- H01H71/70—Power reset mechanisms actuated by electric motor
Landscapes
- Emergency Protection Circuit Devices (AREA)
- Breakers (AREA)
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The invention discloses a circuit breaker device and a power distribution unit. The present invention generally relates to circuit breaker devices in electrical power supplies. The invention has advantageous application, in particular, in power distribution units that provide DC power to electronic devices. Electromechanical circuit breakers are commonly used for circuit protection. They have the disadvantage of a fixed trip condition that can only be changed by changing the circuit breaker assembly. The present invention addresses this problem by providing a circuit breaker apparatus that includes an electromechanical circuit breaker having a first fixed trip condition and an additional circuit that monitors the output current and mechanically trips the circuit breaker when the current exceeds a second trip condition. This approach may use a first trip condition and/or a second controllable trip condition of the electromechanical circuit breaker.
Description
Technical field
Present invention relates in general to the breaker apparatus in power supply.More specifically, the present invention relates in the preamble of independent claims disclosed.For example, the present invention can be in the power supply unit between power supply and load.
Background technology
Be used to various electronic installations (for example, the base station in cellular communication system) that direct current (DC) supply is provided such as the power supply of Switching Power Supply.This power supply has certain output current restriction that can exceed scarcely.Conventionally carry out protection power source with circuit breaker and avoid the excessive electric current that overload causes.Circuit breaker is also protected distribution and the restriction output under the state of fault in high-energy circuit.Fault in a unit can not make other unit with same power supplies be damaged thus.
Conventionally the circuit breaker of type is electro-mechanical circuit interrupter.This circuit breaker has fixing current limit or fixing tripping operation curve, and exceed current limit or tripping operation curve make circuit breaker trip.Circuit breaker has the grade for the circuit breaker of resetting at its front panel conventionally.Produced in large quantities electro-mechanical circuit interrupter, and electro-mechanical circuit interrupter is standard, reliably and low cost element, and approves through authority.
But, about electro-mechanical circuit interrupter, there are some problems.After tripping operation, electro-mechanical circuit interrupter need to manually be reset.Electronic equipment can be arranged on remote location, and can need more energy and time to advance to these positions.The tripping operation of circuit breaker can be caused by the reason that does not need electronic equipment to place under repair.In this case, still need to advance to installation site with replacement circuit breaker.In order to address this problem, need to be with the reset device of circuit breaker of the mode of Long-distance Control.This scheme discloses in Patent Application Publication US6522227B1.
Another problem of electro-mechanical circuit interrupter is relevant with fixed-handle circuit breaker electric current or fixed-handle circuit breaker curve.Existence need to change the various situations of the current limit of circuit breaker.In order to change Limited Current, circuit breaker must be changed into different circuit breakers.Change circuit breaker and need to reorganize and outfit work in the installation site of electronic equipment.The circuit breaker with required current limit be disabled be also possible.In this case, need use to there is the circuit breaker of non-optimum, reduced-current restriction.This can cause the unnecessary tripping operation of circuit breaker.
Summary of the invention
An object of the present invention is to provide the circuit protection to various application, wherein, avoid or reduce the shortcoming of described prior art.Therefore, the object of the invention is to utilize standard, realize overload protection through the advantage of electro-mechanical circuit interrupter and the possibility of control/selection trip condition of inspection.
The object of the invention is by providing breaker apparatus to realize, breaker apparatus comprise have first, the electro-mechanical circuit interrupter of fixing trip condition.The original default tripping operation curve of the first trip condition based on circuit breaker.This configuration also has extra circuit, mechanically makes circuit breaker trip and if its detection output current electric current exceedes the second trip condition.The second trip condition is the subsidiary conditions of implementing by the present invention.Like this, can use first trip condition and/or second of electro-mechanical circuit interrupter, controllable trip condition.
More specifically, object of the present invention is by providing breaker apparatus to realize.Be positioned at least one distribution wire, configuration comprises the electro-mechanical circuit interrupter that is connected to distribution wire, wherein, electro-mechanical circuit interrupter has the device for disconnect the electric current of distribution wire in the time that the electric current of distribution wire exceedes the first trip condition of circuit device, and electro-mechanical circuit interrupter comprises control lever, there is the position of switching on and off, rotating thus described control lever is the electric current on/off that on/off position is configured to respectively described distribution wire, wherein, this equipment further comprises extra circuit, and this extra circuit has:
-sensor device, for measuring the electric current of distribution wire;
-for setting the device of the second trip condition;
-control device, current value and the second trip condition for comparing and measuring: and
-actuator devices, for the control lever of rotating machine electrical circuit breakers mechanically;
Wherein, control device is configured in the time completely stating the second trip condition drive actuator device so that the described control lever of electro-mechanical circuit interrupter is rotated into open position, and therefore disconnects the electric current of described distribution wire.
The invention still further relates to power supply unit, for providing electric power at least one load from least one power supply, wherein, power supply unit has according to breaker apparatus of the present invention, wherein, this equipment comprises at least one electro-mechanical circuit interrupter, sensor device and actuator devices at least one distribution wire.
Some of the preferred embodiment of the invention is described in the dependent claims.
According to the embodiment of the present invention, trip condition comprises load current value, and tripping operation be set to occur in the time that the current value of distribution wire has exceeded the rated current of scheduled volume, the predetermined percentage of for example rated current.
According to another execution mode, trip condition comprises tripping operation curve data, and this tripping operation curve data comprises the respective value of current level value and trip threshold time span.And described control device is adapted to be time that monitoring exceedes each levels of current in predetermined time window and monitoring exceedes the possibility of described trip threshold time span, wherein exceedes threshold time length and represents to meet described trip condition.
In an embodiment of the invention, control device comprises programmable microcontroller.Can comprise for manually selecting to the device of the load current value of control device input for setting the device of the second trip condition.Can additionally or alternatively comprise digital control interface for the device of setting the second trip condition, for input data and/or selection the second tripping operation curve about the second trip condition to control device input.In addition, utilize these set devices also can determine whether to use the first and/or second trip condition.Digital interface for control device also can be for providing the warning information of state or overload protection configuration.This control device also can receive on/off control order via digital control interface, for the on/off of controller electrical circuit breakers.This equipment can also comprise and utilizes wired or wireless transfer of data and control device to carry out the device of telecommunication.Therefore, can the above-mentioned control of long-range execution.
According to another embodiment of the invention, actuator devices comprises: the ferromagnetic core in solenoid and solenoid or permanent magnetism iron core, this core is movably by electric current is provided in solenoid on solenoid, for the control lever of circuit breaker is moved to open position.In another execution mode, actuator devices also has the function to on-position for the control lever of reposition machine electrical circuit breakers.
In an embodiment of the invention, actuator devices comprises ferromagnetic core or the permanent magnetism iron core in the first solenoid, the second solenoid and the first and second solenoids, wherein, described core by providing electric current in a first direction movably in described the first solenoid, so that the described control lever of described circuit breaker is moved to open position, and described core is movably by electric current is provided at least described the second solenoid in second direction, so that the described control lever of circuit breaker is moved to on-position.
In yet another embodiment of the present invention, actuator devices comprises ferromagnetic core or the permanent magnetism iron core in solenoid and solenoid, wherein, this core is movably by the first electric current is provided in solenoid in a first direction, so that the control lever of circuit breaker is moved to open position, and this core is movably by provide the second electric current in described solenoid in second direction, so that the control lever of circuit breaker is moved to on-position, the first electric current and the second electric current have contrary direction in solenoid thus.
In a preferred embodiment of the present invention, this equipment has two or more electro-mechanical circuit interrupter, two or more sensor device and for the two or more actuator devices corresponding to distribution wire.Equipment can comprise the control device independent for each actuator devices and/or for controlling the common control apparatus of two or more actuator devices like this.This actuator devices for the circuit breaker of resetting can be independent, and each actuator devices is configured to the control lever of an electro-mechanical circuit interrupter to be reset to on-position.This equipment can also comprise common actuator device, is configured to the control lever of at least two electro-mechanical circuit interrupter to be reset to on-position simultaneously.Actuator devices can comprise the one or more motor for one or more motor of multiple circuit breakers of resetting and/or the circuit breaker of resetting separately simultaneously.
The present invention has the advantage that showing than the solution of prior art.It is feasible that the circuit breaker that does not change equipment is selected tripping current restriction.In addition, also can change the on/off of tripping current restriction or Long-distance Control distribution wire, thereby without the position of going to this equipment to install.Tripping current limits value can be adjusted as requested or select, and there is no need to select tripping current value from a small amount of predetermined fixed value.In addition, also can be provided for the automatic or remote reset function of circuit breaker.The electro-mechanical circuit interrupter that these functions can be used for the standard of the on/off of switch current by use realizes, and also can obtain thus the technological merit of prior art.And further, if extra overload protecting circuit for a certain reason and inoperation, because its trips according to the specified trip condition that is independent of extra overload protecting circuit, so electro-mechanical circuit interrupter will provide overload protection for subsequent use.
Can also use the configuration without overload condition for the long-range on/off control of single distribution wire.This supports energy conservation, can save the more energy than mechanically closing unwanted equipment because utilize the on/off interface of Long-distance Control to close power supply.Even all accessory power supplys can cut out from unit, and in other the configuration of prior art, this is impossible.
In present patent application, term " power supply " refers to any electric power source.It can preferably refer to have the Switching Power Supply that DC exports, but it also may refer to solar energy or wind power generation configuration or main power source or other DC or AC power supplies.
In present patent application, term " distribution wire " refers to the circuit to load from any power supply supply electric power.
Brief description of the drawings
By detailed description with reference to accompanying drawing, other advantage described and of the present invention will become apparent, in accompanying drawing:
Fig. 1 illustrates according to the block diagram of exemplary breaker apparatus of the present invention and exemplary power supply unit;
Fig. 2 shows according to the present invention for controlling the example devices of the control lever with solenoidal electro-mechanical circuit interrupter;
Fig. 3 illustrates according to the example devices of the control lever that utilizes motor reposition machine electrical circuit breakers of the present invention; And
Fig. 4 illustrate by the function as levels of current maximum time length composition tripping operation curve curve chart.
Fig. 5 shows the power-supply system according to exemplary power supply unit of the present invention.
Embodiment
Fig. 1 shows the block diagram of example devices and power supply unit.Power line is connected to the input of electro-mechanical circuit interrupter 11 (CB) from power supply.This circuit breaker is the standard circuit breaker with fixing rated current.For example, circuit breaker can be based on exceeding the rated current of scheduled volume or can tripping based on rated current-time graph.
This equipment has the current sensor 41 between electro-mechanical circuit interrupter 11 and load.The output signal that uses signal amplifier 47 to amplify this current sensor, and institute's amplifying signal is directed to micro controller unit 51 (MCU).In MCU, monitor the current value of power line and compare with the value of stored tripping operation data (being current limit) and/or electric current-time graph of storing.Can there is the manual electric current selector 58 for selecting to be stored in the memory of MCU or the tripping operation curve of external memory storage.This power supply unit can also preferably have for tripping operation curve data is inputed to the memory of MCU and/or for selecting the digital interface 55 of the tripping operation curve that is stored in memory.Such digital interface can be used to other object equally, such as receiving the state of power supply unit or warning information and for controlling the on/off of described electro-mechanical circuit interrupter.Digital interface can also be by wired or wireless transfer of data by long-range use.The operation of power supply unit can remotely be controlled and monitor to such mode in the situation that not needing to move to installation site.Even in normal condition (not overload or fault), can also be in this locality or the on/off of Long-distance Control distribution wire.For example, due to energy saving or load maintenance, disconnect control and can be used under normal condition.Connecting control can be for recovering after transshipping or only having opened load.
This equipment has solenoid 21, and this solenoid 21 has for the moving ferromagnetic iron core of the control lever position of the circuit breaker of resetting/set or permanent magnetism iron core 24.MCU controls driver 27, and electric current is outputed to solenoid by this driver 27.In the time that solenoidal electric current forms magnetic field, this core and control lever are moved.The solenoid using is in this example used for making electro-mechanical circuit interrupter to trip to off-state.Can also use solenoid to be used for circuit breaker to reset to on-state.This function can be by implementing with two solenoids, one for tripping operation and one for the circuit breaker of resetting.Alternatively, can use single solenoidal permanent magnetism iron core and bipolar driving electric current.Can also use motor, this motor can be separately for circuit breaker and/or be common to several circuit breakers.These interchangeable execution modes are described in more detail in the explanation of following Fig. 2 and Fig. 3.
Fig. 1 illustrates the motor 31 of mobile pallet 34.This pallet can be connected to the control lever of one or several circuit breakers.For example, motor can be controlled as all circuit breakers of the power supply unit of simultaneously resetting.After repeating circuit breaker, pallet is driven to its home position, if circuit breaker meets trip condition, to allow circuit breaker trip.Motor is driven by driver 37, and this driver 37 is controlled by MCU51.
Power supply unit has several loads output conventionally, and this load output has corresponding overload prevention, but power supply unit can also only have one or two output.Can receive input electric power from a public power or several power supply.This power supply unit can have the motor 31 that has the MCU of interface and have driver 37 for all overload protecting circuits.Dotted line 70 illustrates the part of the power supply unit of exporting for each load separately.
Fig. 2 shows the example of the mechanical structure for utilizing solenoid rotation control rod.Electro-mechanical circuit interrupter 11 has and has the control lever 14 that switches on and off position.Fig. 2 shows the control lever in open position.When the control lever closing of power circuit breaker of Fig. 2 when position at an upper portion thereof, and when control lever during at lower position circuit breaker for disconnecting.Movably core 24 attaches to control lever in the mode of articulation.This core preferably includes ferromagnetic material, such as the steel that is embedded in non-ferromagnetic enclosure.By mobile core that the solenoid being made up of two coils 21 and 22 is pressurizeed.In the time that solenoid is pressurized, ferromagnetic core trends towards moving to the centre position of solenoid inside.Therefore, in Fig. 2, the ferromagnetic part 241 of core is shorter than whole core, and remaining core 242 is to be made up of nonferromagnetic material.Coil 21, for tripping operation, makes control lever move to open position from on-position.If control appliance is not used in replacement circuit breaker, do not need to comprise coil 22.Coil 22 is for resetting control lever from open position to on-position.Two coils can also be used for resetting two stages of control lever.In the time of the first stage, coil 21 is pressurized, and core is moved slightly.In second stage, only coil 22 is pressurizeed, make core 24 and control lever 14 move to terminal position.Activation two coils continuous for replacement control lever are necessary, because the power that the control lever of resetting generally needs to on-position is higher to the power of open position than setup control bar.Can also only use a coil for tripping operation and replacement control lever.In this embodiment, in core, use permanent magnet, and determine by the sense of current being applied in coil the direction that core moves.Permanent magnet can cover a part or the whole length of core.
Solenoid and core can have different interchangeable designs.The length of the length of the quantity of the relative core 24 of solenoid and position, core 24, the ferromagnetic core/permanent magnet of core 241 and in the position of core 24 inside, direction and the size of solenoid current and driving designed by this way by the order of solenoidal electric current, for utilizing suitable size and sensing to apply mechanical force on core 24, trip or reset circuit breaker to respond with described electric current.
Fig. 3 shows another solution for the electro-mechanical circuit interrupter of resetting.The figure shows two circuit breaker 11a and 11b, but the quantity of circuit breaker can be different from two naturally.In the time that control lever is positioned at upper position, the circuit breaker of Fig. 3 is in on-state, and in the time that control lever is positioned at lower position circuit breaker in off-state.The replacement of circuit breaker conventionally need to be than the higher power of tripping operation, and such power is difficult to utilize solenoid and core to provide.In the equipment of Fig. 3, motor 31 is used to reset.There is the axle 34a of mechanical converter structure 32 and the motion of 34b, make rotatablely moving of motor be transformed to linear movement.There is the various known interchangeable scheme for realizing such mechanical converter.
Axle 34a and 34b attach to control lever 14a for rotating circuit breaker 11a and 11b and the pallet 35 of 14b.In this example, trip avoidance function is to utilize the core 24a and the 24b that move with corresponding solenoid to implement.Utilize pallet 35 to implement function of reset, it is the control lever of all circuit breakers of reconfiguring equipment simultaneously.When motor 31 is during to axle 34a and 34b pressurization, upwards lift in the drawings pallet 35, and the control lever of pallet replacement circuit breaker.After resetting, motor drives so that pallet turns back to specified lower position and makes the control lever can free-handle in opposite direction.If one or several circuit breakers should remain in off-state, can be by relevant solenoid being pressurizeed after resetting by it/they are set as off-state.
Fig. 4 shows the example that can be used to the tripping operation curve of determining trip condition.Exemplary curve Figure 61 shows maximum time length as the function of current value.Transverse axis represents that duration and the longitudinal axis represent the ratio between transient current value and the load current value of power supply.The curve chart of Fig. 4 is determined by ETSI (ETSI) standard EN 300132-2.Curve shows the maximum inrush current for telecommunication equipment under rated voltage and maximum load.For fear of the value that exceedes curve chart, preferably use ratio in the little time span value of the trip threshold shown in curve chart.Difference between the time value of curve chart and the trip threshold of overload protection arrangement depends on accuracy, the temporal analytical density etc. of the current measurement of overload prevention equipment.
When the trip condition of overload safeguard is when curve, to have described hereinafter the operation of exemplary overload prevention equipment based on tripping operation.At first, overload prevention equipment is determined which current step of monitoring (current step) and is determined which is used as the time span of trip threshold.These data are stored in the memory of micro controller unit.Then utilize the electric current of the current sensor measurement switch element of equipment.
For example, in the time that electric current exceedes current step, then, how long the appearance of overload protection device monitoring current step in specific time window has exceeded.Next check whether described time span exceedes the time threshold limiting for monitoring current step.If there is no overtime threshold value, intermittent current is measured and time measurement.If overtime threshold value, electro-mechanical circuit interrupter is switched to off-state, and it means overload protection device tripping operation.
Exceed trip threshold and mean that overload situations occurs, can damage power supply and if continue supply electric power.Therefore, the switch element on-state that can not automatically switch back.For example, user can confirm that overload condition and activated control, to switch to connection, are switched to load by electric power after tripping operation.
Should note having several possible methods to implement tripping operation monitoring.The quantity of current step can be for example 6, but can be interchangeable by higher or lower numeral.Can be for example 1ms the sample time in current measurement, but can be interchangeable higher or lower numeral.These parameters are programmable.
Monitoring is preferably used for trip time window to trip.The length of for example this time window can be 1 second.During time window, monitoring levels of current exceed, subsequently record and accumulation.If while exceeding the time threshold for any levels of current in time window mouth, switch element is switched to off-state, that is, and tripping operation.After time window finishes, the time value that exceedes levels of current recording is reset, and new time window can utilize zero accumulated time value of the current level exceeding to start.In the time exceeding levels of current, can start new time window next time.Time window can also automatically repeat.
As interchangeable, can apply a kind of sliding time window.On the basis of the data record of the time span of the levels of current exceeding recording in this case, in nearest time window, accumulate.This program is more accurate, but needs more efficient data handling procedure.
Fig. 5 shows the example system for electric power to a 8 load 91-98 is provided from four power supply 71-74 by power supply unit PDU.Load 91 and 93-97 have an electric power input, and load 92 has two electric power inputs, and load 98 has three electric power inputs.System has the first power supply 71, and it has three output V1, V2 and V3.The first power supply provides electric power to arrive load 91 and 92.Second source 72 has two output V4 and V5.Second source provides electric power to arrive load 93 and 94.The 3rd power supply 73 has an electric power output V6, and it provides electric power to three load 95,96 and 97.The 4th power supply 74 has an output, and its three electric power inputs that are single load 98 provide electric power.
Power supply unit comprises: protective circuit 701-709, and it comprises electro-mechanical circuit interrupter; And actuator devices, it is in this example separately for each circuit breaker.Protective circuit is corresponding with the circuit 70 in Fig. 1.Power supply unit also has control device 80, and this control device 80 can comprise microcontroller, memory and I/O interface.The signal that control unit control actuator devices and reception are corresponding with output current.Each in 6 load 91-95 all has independent protective circuit 701-706.Load 96 and 97 has public protective circuit 707.Load 98 has the protective circuit 708 of inputting for two power supplys and another protective circuit 709 of inputting for the 3rd electric power.
It should be noted, the quantity of power supply, overload protecting circuit or load in power supply unit is limited to mentioned quantity never in any form.Therefore power supply unit can have the input for one or more power supply, and power supply can have one or more electric power output.An overload protecting circuit can provide electric power for one or several loads, and load can have one or several electric power inputs.In addition, a load can receive the electric power from one or more overload protecting circuit.The input of overload protecting circuit and output preferably have a shared ground wire.
Overload protecting circuit can use the control interface 55 of the micro controller unit of serial or parallel to programme.Overload protecting circuit there is the independent address of controlling for separately.Wired or wireless transfer of data can also be configured for to the Long-distance Control of overload protecting circuit.Control output data and can comprise for example state, alarm and the historical information of operation about overload protecting circuit.For example, can also use Long-distance Control is ON/OFF state by device translates.
Control device for example can be programmed at first during manufacture, and/or they can programme in local I&M process, and/or they can be long-range is programmed by central control equipment.Programming refers to for microprocessor and/or for storing installation and the renewal of program of tripping operation curve data.Control appliance can send history, state, alarm and metrical information to remote scheduling center.Overload protecting circuit can also be transmitted in the processor of the power supply that their state, alarm and other possible information is connected to them.If for example circuit breaker trips, power supply can switch to off-state like this.
In this patent specification, structure and the assembly of equipment can not described in further detail, because they can utilize the general knowledge of knowing altogether of above-mentioned explanation and affiliated technical field those of ordinary skill to implement.
Can utilize the control function of implementing overload protecting circuit such as the analog circuit of ASIC circuit, thereby implement simple enforcement.In such execution mode, can determine trip condition by for example analog filters.But, in order to complete more advanced persons' function, be preferably numeral and implement.In the time using microcontroller/processor, when circuit needs suitable processor program, it carries out in equipment.Known device systems need to be converted to according to assembling of the present invention, except hardware distortion, mean that one group of machine readable instructions of command processor execution above-mentioned functions is stored in memory.In the time of instruction in conjunction with this patent application, the composition of this instruction and store memory into and comprise that known technology is within person skilled in the art's limit of power.
Some execution modes according to solution of the present invention have been described hereinbefore.Can naturally in claim limited range, modify according to principle of the present invention, for example, by the details of revision for execution mode and the scope of application.
Feature of the present invention can realize in various combination.For example,, possible combination:
-in the situation that there is no reset mechanism, use a solenoid and for making the movable core of circuit breaker trip.
Two solenoids of-use and movably core are to provide tripping operation and two functions of resetting.
-use a solenoid with removable permanent magnetism iron core to provide tripping operation and two functions of resetting, and
-use for making the solenoid of circuit breaker trip and movably core and the motor for the circuit breaker of resetting.
Can also have not by solenoid and trip but the circuit breaker that can be reset by solenoid or motor according to power supply unit of the present invention.
Should also be noted that " the second trip condition " can comprise selectable several interchangeable trip condition.Trip condition can be independent of each circuit breaker, but they equally can be jointly for one group of circuit breaker.
Although the present invention has described the execution mode that DC electric current is provided, be obviously also applicable to there is the load that AC electric current is provided according to overload protecting circuit of the present invention.
The present invention can be applied to as the DC of various objects and AC distributing electric power, such as telecommunication system, electric automobile application, solar panel etc.
Claims (15)
1. a breaker apparatus, be positioned at least one distribution wire, described equipment comprises the electro-mechanical circuit interrupter (11) that is connected to described distribution wire, wherein, described electro-mechanical circuit interrupter has the device for disconnect the electric current of described distribution wire in the time that the electric current of described distribution wire exceedes the first trip condition of described circuit breaker, and described electro-mechanical circuit interrupter comprises control lever (14, 14a, 14b), described control lever has the position of switching on and off, rotating thus described control lever is that on/off position is configured to respectively the electric current of described distribution wire to connect/be broken as on/off, it is characterized in that, described equipment further comprises extra circuit, described extra circuit has:
-sensor device (41,47), for measuring the electric current of described distribution wire;
-for setting the device (51-58) of the second trip condition;
-control device (51), for more measured current value and described the second trip condition: and
-actuator devices (21,22,24), for mechanically rotating the described control lever of described electro-mechanical circuit interrupter;
Wherein, described control device is configured to drive described actuator devices so that the described control lever of described electro-mechanical circuit interrupter is rotated into open position in the time meeting described the second trip condition, and therefore disconnects the electric current of described distribution wire.
2. equipment according to claim 1, is characterized in that, described trip condition comprises load current value, and tripping operation is configured to occur in the time that the current value of described distribution wire exceedes rated current one scheduled volume.
3. according to equipment in any one of the preceding claims wherein, it is characterized in that, described trip condition comprises tripping operation curve data, described tripping operation curve data comprises the respective value of levels of current value and trip threshold time span, and described control device is adapted to be time that monitoring exceedes each levels of current in predetermined time window and monitoring exceedes the possibility of described trip threshold time span, wherein, exceed threshold time length and represent to meet described trip condition.
4. according to equipment in any one of the preceding claims wherein, it is characterized in that, comprise the device for manually selecting described the second trip condition for setting the device of described the second trip condition.
5. according to equipment in any one of the preceding claims wherein, it is characterized in that, comprise digital control interface for the device of setting described the second trip condition, described digital control interface is for inputting the data of described the second trip condition to described control device and/or for selecting described the second trip condition.
6. equipment according to claim 5, is characterized in that, described control device is configured to state information is provided and/or receive on/off control order via described digital control interface.
7. according to equipment in any one of the preceding claims wherein, it is characterized in that, described equipment comprises and utilizes wired or wireless transfer of data and described control device to carry out the device of telecommunication.
8. according to equipment in any one of the preceding claims wherein, it is characterized in that, described actuator devices also has the function for the described control lever of described electro-mechanical circuit interrupter being reset to on-position.
9. according to equipment in any one of the preceding claims wherein, it is characterized in that, described actuator devices comprises ferromagnetic core or the permanent magnetism iron core of solenoid and described solenoid inside, described core is by provide electric current in described solenoid movably, so that the described control lever of circuit breaker is moved to open position.
10. equipment according to claim 9, it is characterized in that, described actuator devices comprises the first solenoid, ferromagnetic core or permanent magnetism iron core in the second solenoid and described the first solenoid and described the second solenoid, wherein, described core is movably by provide electric current in described the first solenoid in a first direction, so that the described control lever of circuit breaker is moved to open position, and described core is movably by provide electric current at least described the second solenoid in second direction, so that the described control lever of circuit breaker is moved to on-position.
11. equipment according to claim 8, it is characterized in that, described actuator devices comprises the permanent magnetism iron core in solenoid and described solenoid, wherein, described core is movably by provide the first electric current in described solenoid in a first direction, so that the described control lever of circuit breaker is moved to open position, and described core is movably by provide the second electric current in described solenoid in second direction, so that the described control lever of circuit breaker is moved to on-position, described the first electric current and described the second electric current have contrary direction in described solenoid thus.
12. according to equipment in any one of the preceding claims wherein, it is characterized in that, described actuator devices comprises at least one motor, and described at least one motor is for being reset to on-position by the control lever of one or several electro-mechanical circuit interrupter.
13. according to equipment in any one of the preceding claims wherein, it is characterized in that, described equipment comprises at least two electro-mechanical circuit interrupter, at least two sensor devices and at least two actuator devices at least two distribution wires of correspondence, and described actuator devices is configured to individually the described control lever of described circuit breaker be reset to on-position, and/or described actuator devices is configured to the control lever of at least two circuit breakers be reset to on-position simultaneously.
14. according to equipment in any one of the preceding claims wherein, it is characterized in that, described equipment comprises at least two electro-mechanical circuit interrupter, at least two sensor devices and at least two actuator devices at least two distribution wires, and described equipment comprises the common control apparatus for controlling at least two actuator devices.
15. 1 kinds of power supply units, described power supply unit is used for electric power to be supplied at least one load from least one power supply, it is characterized in that, and described power supply unit comprises according to the breaker apparatus for overload protection described in any one in claim 1-14.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP13167957.3 | 2013-05-16 | ||
| EP13167957.3A EP2835815B1 (en) | 2013-05-16 | 2013-05-16 | Circuit breaker arrangement and power distribution unit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104167339A true CN104167339A (en) | 2014-11-26 |
| CN104167339B CN104167339B (en) | 2017-05-03 |
Family
ID=48430546
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410209088.8A Active CN104167339B (en) | 2013-05-16 | 2014-05-16 | Circuit breaker device and power distribution unit |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US9449777B2 (en) |
| EP (1) | EP2835815B1 (en) |
| JP (1) | JP6430145B2 (en) |
| KR (1) | KR101777902B1 (en) |
| CN (1) | CN104167339B (en) |
| IN (1) | IN2014DE01302A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105788982A (en) * | 2016-04-15 | 2016-07-20 | 泉州市大西洋电力科技有限公司 | Switch circuit breaker |
| CN113037598A (en) * | 2021-05-25 | 2021-06-25 | 宜科(天津)电子有限公司 | Mobile device-based industrial circuit breaker visualization system |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10749334B2 (en) | 2018-07-12 | 2020-08-18 | Ovh | Method and power distribution unit for preventing disjunctions |
| US11563433B2 (en) | 2019-10-10 | 2023-01-24 | C&C Power, Inc. | Direct current circuit switch |
| JP7440903B2 (en) * | 2020-06-19 | 2024-02-29 | 株式会社ヘキサリンク | Circuit breaker operating devices, circuit breaker units and distribution boards |
| KR102482140B1 (en) * | 2020-09-28 | 2022-12-27 | 한화정밀기계 주식회사 | Power control device of electronic component mounting apparatus |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5875087A (en) * | 1996-08-08 | 1999-02-23 | George A. Spencer | Circuit breaker with integrated control features |
| US6326870B1 (en) * | 1999-08-26 | 2001-12-04 | General Electric Company | Remote operating apparatus and method for a circuit breaker handle |
| CN101013808A (en) * | 2005-09-16 | 2007-08-08 | 施耐德电器工业公司 | Electronic trip device, circuit breaker equipped with such trip device, and monitoring method |
| CN101114555A (en) * | 2006-05-01 | 2008-01-30 | 伊顿公司 | Circuit interrupter including point-on-wave controller and voltage sensors |
| JP2010088294A (en) * | 2008-09-30 | 2010-04-15 | General Electric Co <Ge> | Multi-function circuit interruption accessory |
| CN101933112A (en) * | 2008-01-31 | 2010-12-29 | 伊顿公司 | Manually selectable instantaneous current setting for a trip unit and an electrical switching apparatus incorporating the same |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04112619A (en) | 1990-09-03 | 1992-04-14 | Hitachi Ltd | Distribution line interrupting method, interrupter and using method thereof |
| US6195243B1 (en) * | 1998-05-05 | 2001-02-27 | George Auther Spencer | Method and apparatus for adaptive configuration and control in a network of electronic circuit breakers |
| JP3720693B2 (en) * | 2000-09-08 | 2005-11-30 | 株式会社日立産機システム | Circuit breaker and energization information monitoring system using the same |
| US6522227B1 (en) | 2001-09-24 | 2003-02-18 | General Electric Company | Remote operated circuit breaker panel |
| US7280013B2 (en) * | 2003-07-03 | 2007-10-09 | Tdh Solutions, Llc | Self-contained breaker reset system and method |
| JP4457379B2 (en) * | 2003-12-19 | 2010-04-28 | 株式会社ネオインターナショナル | Electronic breaker |
| US20060244557A1 (en) * | 2005-05-02 | 2006-11-02 | Sorenson Richard W | Mountable remote actuated circuit breaker driver |
| JP4578433B2 (en) * | 2005-07-21 | 2010-11-10 | 三菱電機株式会社 | Breaker |
| US20090021879A1 (en) * | 2007-07-17 | 2009-01-22 | Rivers Jr Cecil | Apparatus and method for fault current interruption |
| JP2009163882A (en) | 2007-12-28 | 2009-07-23 | Nihon Airpax Kk | Electronic overcurrent circuit breaker |
| JP2009199978A (en) * | 2008-02-25 | 2009-09-03 | Fuji Electric Fa Components & Systems Co Ltd | Remote operation device for circuit breaker |
| US8120886B2 (en) | 2008-09-04 | 2012-02-21 | General Electric Company | Circuit breaker closing actuator and method of operation |
| CN103021689B (en) * | 2011-09-26 | 2016-12-28 | 德昌电机(深圳)有限公司 | Electromagnetic driver |
| US8711548B2 (en) * | 2012-06-13 | 2014-04-29 | Schneider Electric USA, Inc. | Automatic actuator for breakers or switches |
-
2013
- 2013-05-16 EP EP13167957.3A patent/EP2835815B1/en active Active
-
2014
- 2014-05-15 IN IN1302DE2014 patent/IN2014DE01302A/en unknown
- 2014-05-16 US US14/279,599 patent/US9449777B2/en active Active
- 2014-05-16 KR KR1020140059235A patent/KR101777902B1/en not_active Expired - Fee Related
- 2014-05-16 JP JP2014102164A patent/JP6430145B2/en active Active
- 2014-05-16 CN CN201410209088.8A patent/CN104167339B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5875087A (en) * | 1996-08-08 | 1999-02-23 | George A. Spencer | Circuit breaker with integrated control features |
| US6326870B1 (en) * | 1999-08-26 | 2001-12-04 | General Electric Company | Remote operating apparatus and method for a circuit breaker handle |
| CN101013808A (en) * | 2005-09-16 | 2007-08-08 | 施耐德电器工业公司 | Electronic trip device, circuit breaker equipped with such trip device, and monitoring method |
| CN101114555A (en) * | 2006-05-01 | 2008-01-30 | 伊顿公司 | Circuit interrupter including point-on-wave controller and voltage sensors |
| CN101933112A (en) * | 2008-01-31 | 2010-12-29 | 伊顿公司 | Manually selectable instantaneous current setting for a trip unit and an electrical switching apparatus incorporating the same |
| JP2010088294A (en) * | 2008-09-30 | 2010-04-15 | General Electric Co <Ge> | Multi-function circuit interruption accessory |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105788982A (en) * | 2016-04-15 | 2016-07-20 | 泉州市大西洋电力科技有限公司 | Switch circuit breaker |
| CN113037598A (en) * | 2021-05-25 | 2021-06-25 | 宜科(天津)电子有限公司 | Mobile device-based industrial circuit breaker visualization system |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2835815A1 (en) | 2015-02-11 |
| CN104167339B (en) | 2017-05-03 |
| US20140340801A1 (en) | 2014-11-20 |
| IN2014DE01302A (en) | 2015-06-12 |
| JP2014225454A (en) | 2014-12-04 |
| US9449777B2 (en) | 2016-09-20 |
| KR101777902B1 (en) | 2017-09-12 |
| HK1205351A1 (en) | 2015-12-11 |
| KR20140135662A (en) | 2014-11-26 |
| JP6430145B2 (en) | 2018-11-28 |
| EP2835815B1 (en) | 2015-11-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104167339A (en) | Circuit breaker device and power distribution unit | |
| EP2579291B1 (en) | Coil actuator for a switching device and related switching device | |
| US6055144A (en) | Electrical power distribution system utilizing circuit breakers with internal control and communication circuitry | |
| US10361043B2 (en) | Circuit breaker including remote operation circuit | |
| US7280013B2 (en) | Self-contained breaker reset system and method | |
| CN109767888A (en) | A kind of slide rheostat and its control method, electric machine control system | |
| CN101714486A (en) | Multi-function circuit interruption accessory | |
| CA2911373C (en) | Circuit breaker panel including remotely operated circuit breaker | |
| CA2846660C (en) | Control circuit for motorized circuit breaker | |
| JP2005094930A5 (en) | ||
| US9831656B2 (en) | Circuit interruption apparatus providing automatic reduced arc mode and methods of operating the same | |
| EP2693456B1 (en) | Coil actuator for a switching device and related correction method | |
| EP1573877A1 (en) | Protective switch | |
| CA2531211C (en) | Manual trip control method and arrangement for multiple circuit interrupters | |
| HK1205351B (en) | Circuit breaker arrangement and power distribution unit | |
| WO2015073568A1 (en) | Means for providing improved operation properties for electrically operated circuit breakers, disconnect switches, and contactors | |
| RU122786U1 (en) | ELECTRIC CONTROL DEVICE | |
| CA2833080A1 (en) | Circuit arrangement for an alternating current contactor, motor protection relay and method for producing a voltage supply | |
| JP2010160124A (en) | Contactor including insulation resistance measuring terminal | |
| KR20120039876A (en) | Magnetic contactor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200928 Address after: Espoo, Finland Patentee after: AVO Telecom Finland Address before: Espoo, Finland Patentee before: Yifu Co.,Ltd. |
|
| TR01 | Transfer of patent right |